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矿井热动力灾害及救援安全性判定研究现状及展望

Research status and prospect of mine thermal disaster and rescue safety judgement

  • 摘要: 矿井热动力灾害是煤矿重特大事故的主要灾害类型,严重制约着煤炭绿色安全高效开采。总结了矿井热动力灾害的发展概况,分析了救援中热动力灾害灾变特性,对矿井火灾环境特征参数的时空演化规律、救援危险区域的判定、救援安全性评价分别进行文献梳理与论述,探讨了现阶段研究存在的不足,对矿井热动力灾害及其救援安全性预测的重点研究方向进行了展望:救援行为影响下典型可燃物火源特性及火灾巷道环境参数变化规律,救援过程大范围巷道内环境参数的时空演化规律及继发灾害的孕灾机制,灾后瓦斯运移规律、燃烧火焰及爆炸冲击波传播规律,继发灾害叠加效应下救援危险态势的动态判定方法。研究成果对我国矿井热动力灾害及救援安全性预测领域的理论与技术研究有一定的参考价值。

     

    Abstract: Mine thermodynamic disasters are the main disaster type of serious accidents in coal mines ,which severely restrict the green,safe and efficient mining of coal. The paper documents the development of the definition of thermodynamic disaster,and analyzes the characteristics thermal dynamic disasters during rescue. Spat iotemporal evolution of characteristic parameters of mine fire environment, determination of rescue danger areas and safety evaluation of rescue were respectively revie wed and discussed. At the same time ,the shortcomings of the current research were also discussed. Finally,the key research directions of mine thermal power disasters and rescue safety prediction are prospected: the characteristics of typical combustible fire sources and the change law of fire roadway environmental parameters under the influence of rescue behavior; patiotemporal evolution of environmental parameters in large-scale roadways during rescue and the mechanism of secondary disaster S; the law of gas migration after disasters; combustion flame and explosion shock wave propagation law after the disaster;dynamic judgment method of rescue hazard si tuation under the superposition effect of secondary disasters. The research results have a certain reference value for the theoretical and technical research in the field of mine thermodynamic disaster and rescue safety prediction in China.

     

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